Question

calculate the number of valence electrons of ZnCO3,CuSO4​

Answer 1

Explanation:

oxygen=2

carbon=1

copper=1

zinc carbonate=1

zinc=1

copper sulphate=1

Answer 2

Answer:

for znco3 it is 24

no of Valence electrons in zn are 2

no of Valence electrons in c are 4

no of Valence electrons in o are 6

but o3 3*6=18

so 2+4+18=24